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Finding the Fourth Proportional to 61,675.71, 85,114.04 and 37,815.54

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Solution

The fourth proportional to 61,675.71, 85,114.04 and 37,815.54 is: 52,186.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,675.71 : 85,114.04 = 37,815.54 : x
  2. Step 2: Convert to fraction form
    61,675.71/85,114.04 = 37,815.54/x
  3. Step 3: Cross multiply
    61,675.71x = 85,114.04 × 37,815.54
  4. Step 4: Simplify right side
    61,675.71x = 3,218,633,195.10
  5. Step 5: Solve for x
    x = 3,218,633,195.10/61,675.71
  6. Step 6: Final answer
    x = 52,186.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.